Patent WO-2020025835-A1 (WO)
Title: Improved construction method for producing buildings with a prefabricated structure
Inventor: CORRAL CORRAL ALBERTO
IPC: E04B1/343
Filed: 2018-08-02
Abstract: The invention relates to a construction method for producing buildings with a prefabricated timber structure on a supporting platform. The construction method is novel in that it comprises a series of steel and timber parts produced in a workshop, which, when fitted and screwed together, form the supporting base and the structure of the building respectively. The rest of the construction elements that form the building are placed on the timber parts that make up the structure of the building by means of fitting and screwing. The steel bases and the timber connection girders, which are fitted to one another, create a supporting platform, the dimensions of which are dependent on the number of parts being used. The platform serves as a support on the ground, a guide for the installations and a base for mounting the timber built space. The timber parts are the girders and pillars of the structure. The parts are designed so that the connections therebetween are created by means of fitting and screwing. A series of grooves are provided in the girders and pillars so that the rest of the construction elements (beams, sidings, floor slabs, windows, etc.) can be fitted and screwed thereto. The floor, walls and roof are produced using single panels or sandwich panels. After fitting and screwing the beams to the girders, the floor and roof panels are positioned thereon, subsequently screwing same to the beams. The facade panels are fitted between the girders and the pillars and screwed to both. It is possible at any time to incorporate a ventilated facade module that provides great energy efficiency to the construction system and also makes it possible to choose different finish materials for the facade of the building. In order to extend the initial building from any point of same, timber pillars and girders are designed which fit into the structure of the initial building. The fact that all the connections of the building are created by means of fitting and screwing allows rapid assembly, modification and disassembly.A system for direct support on the ground, with no foundations, is designed to facilitate the assembly of provisional constructions.In addition, the invention does not require the use of special tools or specialised workers in order to assemble a building. The roof is provided with a thermal control system that makes it possible to increase the energy efficiency of the building. For this purpose, an air chamber is created in the roof. This allows air to circulate when the temperature is high, operating as a ventilation chamber. If the temperature is low, the circulation of air through the chamber can be blocked, in which case it operates as an insulation chamber. In this way the actual construction is capable of adapting to the outside environment, allowing energy savings in both heating and cooling. A manual system is incorporated for the dual use, according to its position, of a load-resisting plane. In horizontal position, this plane is used as roofing of the construction onto which it is incorporated. If said plane is turned 90º, into a vertical position adhered to the façade, it becomes a safety closing element.